Window-operating device



Aug. 19, 1930. J, w- FRANK 1,773,353

- wINDow OPERATING DEVICE Filed OCT'. 19, 1928 www;

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Patented Aug. 19, 1930 TE S PATE

NT oFFlcE# JOHN' W. FRANK, 0F MUSCTINE, IOWA.

wINDowoPEaATmG nnvrcn Application filed October 1 This invention relates to a, window operating device and more particularly to a device for raising and lowering a plurality of windows simultaneously which device is operable from a point remote from the said windows.

The main objects of the invention are the provision of such a device in a simple and durable form which may be readily attached to the window frames andsash now in Ause and which is operated byan electric motor controlled by a switch placed in any convenient position.

The foregoing and other objects of the invention together with means whereby the same may be carried into effect will b est be understood from' the following description of a preferred embodimentof the invention taken in connection 'with the accompanying drawing in which:

Figure 1 is an elevation of a portion of a' building wall showing the windows therein provided with my invention.

. c Figure 2 is an enlarged elevation of a port1on of a window frame and associated sash showin parts of my invention applied thereto; an Figure 3 is a section along the line 3 3 in Figure 2.

Referring now more particularly to thel drawing the reference numeral 1 denotes a pair of conventional windows 1n the wall 2 each of which comprises the frame 3 and upper and lower sashes 4 and 5. Aline shaft 6 is journaled through hangers .7 secured to the wall, the said shaft extending across the windows at a point adjacent the upper ends thereof as shown. This line shaft 6 is rotated by means of an electric motor 8 secured to the wall and this motor is controlled by a conventional reversing switch 9 which may be placed in any convenient position and which allows the direction of rotation of the motor to be reversed at will for a purpose to be set forth.`

Bearings 10 are secured to each side of the 9, 1928. Serial No. 313,470.

frame 3 in alignment with the line shaft 6 and stub shafts 11 are journaled therein, the l lsaid shaft `11 extending into the frame 3 `through apertures 12 therein. Beveled gears 13 are secured upon the outer ends of the stub n, shafts v11 and beveled pinions 14 are secured upon the line shaft 6 and placed in mesh with these' gears, the 'said pinions 14 being ar ranged oppositely as shown so that the beveled gears 13 in each window will be turned in 5;, oppositeI directions. Peripherally grooved pulleys 15 are secured upon the inner ends of the stub shafts 11 in any suitable manner such as by the nuts 16 and cotter keys 17. The sash cords 18 are secured at oneend to 60 the lower sash 5 as shown at 19 and are trained over the pulleys l5 and provided at their opposite ends with sash weights 2Q.

In the use and operation of the device the switch is .operated in the proper manner to cause the motor to rotate the line shaft, .which through'the beveled gears and pinions will turn the grooved pulleys and raise the windows. The windows may be lowered by reversing the direction of the rotation of the motor as will be understood.

In the/construction anduse of this invention, the pulleys 15, for carrying the sash cords 18, are made smooth upon Vtheir peripheries and thus these cords take up any shock of the sash when same'is raised or lowered by simply glidingover the pulleys when the sash reaches the end of its movement in either direction. The operatorv simply closes the current through the main motor` for two or three seconds, and the windows are raised or lowered, any excess movement of the pulleys being immaterial. One motor will suflice for the entire battery of 4windows through the employement of the-85 connecting shaft 6.

While I have herein set forth a certain preferred embodiment of my invention, it is understood that I may vary from the same in minor details, not departing from the spirit of the nventionand within the scope of the appended claim.

I claim: Y In a device of the character described, in combination with a window frame andl slidable sash therein,periphera11y smooth pulleys rotatably mounted in the window frame above the sash, means for rotating the said pulleys, sash-cords secured at one end to the sash. and trained over the pulleys, and weights upon the free ends of the sash cords.

In testimony whereof I v,aiix my signature.

JOHN W. FRANK. 

